Answer:
The political party that exposed secularism and welfare of weaker sections and minorities is the Bahujan Samaj Party (BSP).
Explanation:
The BSP is a political party in India that primarily represents the interests of the Scheduled Castes, Scheduled Tribes, and Other Backward Classes. It is known for its focus on social justice and inclusive governance. Here's a breakdown of how the BSP aligns with the criteria mentioned:
- Secularism: The BSP follows the principle of secularism, which means it supports equal treatment and opportunity for people of all religions and beliefs. It promotes a secular state where religion does not play a role in governance.
- Welfare of weaker sections: The BSP aims to uplift the weaker sections of society, including Scheduled Castes, Scheduled Tribes, and Other Backward Classes. It focuses on providing them with social welfare benefits, reservations in education and employment, and other measures to improve their socio-economic conditions.
- Welfare of minorities: The BSP also advocates for the welfare of religious and linguistic minorities in India. It supports policies that protect their rights and ensure their equal participation in society.
Therefore, the Bahujan Samaj Party (BSP) is the political party that aligns with the mentioned criteria of exposing secularism and welfare of weaker sections and minorities.

Answer:

The correct answer to the question is option 'B', which is the Bahujan Samaj Party (BSP). The BSP is a political party in India that primarily represents the interests of the Scheduled Castes (SC), Scheduled Tribes (ST), Other Backward Classes (OBC), and religious minorities. It is known for its focus on the welfare of weaker sections and minorities, as well as its opposition to the concept of secularism.

Bahujan Samaj Party (BSP)
- The Bahujan Samaj Party was founded by Kanshi Ram in 1984, with the aim of empowering the marginalized sections of society and giving them a political voice.
- The party follows the ideology of "Bahujan Samaj," which means the majority of the people, comprising SCs, STs, OBCs, and religious minorities.
- The BSP seeks to address the issues of social and economic inequality faced by these communities and works towards their upliftment.

Opposition to Secularism
- The BSP is known for its opposition to the concept of secularism. The party believes that secularism has failed to address the specific needs and concerns of the marginalized sections of society.
- Instead, the BSP advocates for a more inclusive and egalitarian form of politics, which prioritizes the welfare and empowerment of the weaker sections.

Welfare of Weaker Sections and Minorities
- The BSP has consistently advocated for the welfare of weaker sections and minorities in India.
- The party has implemented policies and programs aimed at providing education, healthcare, and employment opportunities for these communities.
- It has also advocated for reservations and affirmative action policies to ensure representation and equal opportunities for the marginalized sections.

In conclusion, the Bahujan Samaj Party (BSP) is the political party that exposed secularism and focused on the welfare of weaker sections and minorities. The party has been instrumental in giving a political voice to the marginalized communities in India and has consistently worked towards their upliftment.